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Scale OilPull Build - About 3/8 Scale of a Heavyweight

decoy64

Registered
Hello All-

I am starting on a scale OilPull Build. Attached below are a couple of 3D Solidworks renders of what I am kind of thinking. I "borrowed" :D several construction ideas from wagswitte's two builds. This is just a rough pass at the design. It will probably morph quite a bit over the course of building the model. I will either be using a 4hp Cushman binder engine, or a 1 1/2 HP IHC M for the engine, depending on which one fits better. I do plan on building a semi-replica of the Rumely E clutch to use on this. If I use the M, I will remove the magneto side flywheel and replace it with the clutch. That's what I have shown in the model.

I will be using the 3 speed high/low rear end out of a Wheel Horse garden tractor.

Please let me know what you think. Should be making some progress on it this weekend. Picking up channel iron and square tube on the way home from work.

If anyone has any good ways to form the wheels without me having to pay someone to make them, please let me know.

-Griffin
 

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Keith Kinney

Sponsor
Last Subscription Date
10/02/2019
Re: Scale OilPull Build - About 3/8 scale of a heavyweight

Looks like a great project. One thing that might help you. The Model E clutch had 3 shoes like you've shown. The Model G and smaller tractors had a 2 shoe clutch. It would save you some machining time.
Keith
 

decoy64

Registered
Good call on the clutch. I am still undecided as to whether I will go with 3 or 2 shoes.

In the meantime, I got started on the frame this weekend. I tend to get really into projects like this. Made quite a bit of progress over the last couple of days. Got the main part of the frame fabricated, and the transmission halfway figured out. Only problem is that when I drilled the holes for the transmission mounting bolts, I measured multiple times, and still somehow managed to mount it almost 3" too low :bonk:

I guess I get to re-do that, but everything else is moving along nicely.
 

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Casemaker

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Last Subscription Date
03/04/2020
You can look around for large diameter pipe to cut the wheel bands from, you might get lucky and find some for scrap price.
 

wagswitte

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Last Subscription Date
04/17/2014
Keep posting pictures of your progress, cant wait to see your project finished, know once i get started on something its hard not to stop. Look likes its going to be a good one👍
 

decoy64

Registered
I sure hope so... :D

Didn't really get anything done today, other than fixing my screwup with the transmission height. No pictures tonight. It may be a few days before I get to do much more on this. Going out of town for work tomorrow, and probably have to do some stuff in the yard on Wed. Hopefully I can get back to it later in the week. I think I will tackle the rear platform next. Need to call a couple of sheet metal shops here in town that do work for my work... See if I can pull some strings on getting the outer bands for the wheels :)
 

OTTO-Sawyer

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Age
57
Last Subscription Date
07/15/2019
Not to put your project on hold or anything, but you might want to get your wheels made before dialing in the transmission height.

Although I guess you could adjust the pivot location on the front axle mount if need be to get it setting level too if your wheels end up being different diameters than what you originally planned.

I like your 3D Solidworks renderings. :cool:

:salute:
 

wagswitte

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Last Subscription Date
04/17/2014
I know withe the two Oil Pulls and the 8-16 that i did i started with the wheels first, kind of gave me an idea of how big to make it, of course i didnt have any drawings to go by kind of went off the top of my head, i didnt have my wheels rolled a frien of mine works at a place that makes air and propane tanks so he got what i needed all i did was make the hub and spokes, if you need any advice if i have any to give PM me and ill give you my number, but im sure you probably have it figured out in your mind already, its 90% thinking and 10% doing. Lol
 

decoy64

Registered
I'm not too worried about that. I have the back wheels planned at 32" If I can't find anything, I will just have them made by the guys at work, or at one of our "usual suspects" for that sort of thing. Sometimes working for a fab shop and custom engineering company pays off :)

Didn't get a chance to work on it at all tonight. Hopefully I will later this week.
 

wagswitte

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Last Subscription Date
04/17/2014
I work at a fab shop too, anything i need i can usually get here i do have things i can use at home when I’m not at work and a friend of mine helps me out once in awhile dropping stuff off he thinks i might use.
 

decoy64

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Sorry I've been a stranger lately :) I haven't had any time to work on this little guy for a while. Hoping to have quite a bit of time this weekend to devote to it. More pictures will be coming after that
 

decoy64

Registered
You all were probably thinking this thing died as just a frame... I have been super busy lately. (Always seems to happen when you have something you WANT to work on...):bonk:

Got some work done on the clutch assembly tonight. I will try to post pictures tomorrow of where I got tonight, and where I get tomorrow. I should have the most of the day to dedicate to working on it. Still don't have my wheels yet, but the guys in the fab shop at work are supposed to be hooking me up with the outer rims rolled to my dimensions. I have been on the road for work for the last 2 weeks, so I haven't had the opportunity to harass them about it :O

More to come...

-Griffin
 

decoy64

Registered
Here's the pictures, a day late... I got the engine roughly positioned and a good portion of the clutch parts made. I still need to finish the clutch shoes and throw out bearing. Hopefully I will get some news of the wheels being done this week at work. First pic is to show kind of how the clutch is going to work.
 

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decoy64

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Getting some more done on the OilPull today. Got the rings for my wheels this week, and am working on getting them built today. I will post pictures when I have some to post.

-Griffin
 

wagswitte

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Last Subscription Date
04/17/2014
Thought I would see if you got anything done on your build,I know you have probably been busy just thought I would check in.
 

decoy64

Registered
It's been a while since I posted on here, and need to get this thread caught up with pictures... Have to get them off of my phone... More updates in the coming days. I had it moving on it's own last summer, but didn't get many pictures. Got too involved in working on it.
 

decoy64

Registered
First picture is the steering box I had to build after my initial try stripped out. This one is like having power steering :)

Second picture is the replacement impeller I had to make for the Cushman engine's water pump. Original shaft was badly necked at the packing gland, and the impeller was cast pot metal. Started melting when I tried to weld up the shaft... :bonk:

Oh, well, just make another one...
 

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